/// <summary>
/// LoadContent will be called once per game and is the place to load
/// all of your content.
/// </summary>
protected override void LoadContent()
{
// Create a new SpriteBatch, which can be used to draw textures.
spriteBatch = new SpriteBatch(GraphicsDevice);
whitePixel = Content.Load <Texture2D>("Images/WhitePixel");
defaultFont = Content.Load <SpriteFont>("Fonts/DefaultFont");
gameScreenManager = new GameScreenManager(spriteBatch, Content, GraphicsDevice, whitePixel, defaultFont);
gameScreenManager.Initialize();
gameScreenManager.GameScreenWidth = graphics.PreferredBackBufferWidth;
gameScreenManager.GameScreenHeight = graphics.PreferredBackBufferHeight;
gameScreenManager.OnGameExit += Exit;
gameScreenManager.ChangeScreen(new MenuScreen(gameScreenManager, Content));
}